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   Small brass microscope in wooden case; brass microscope with circular base supporting cylindrical arm; green lining on underside; mirror mounted to a pin thrust through the arm, above this is a square shaped stage; drawtube held in cylindrical cuff; adjustment by hand, drawtube not adjustable for length; a condensor is mounted on a dual ball mount to the cuff for observing items on the stage; objective is three component continental button type; ...

   Record Type: Object

   
2. View Full Record

   Brass microscope with round brass base. Stage, tube, and mirror mount onto cylindrical support that is not adjustable; mirror adjustable, mounts to pin thrust through support arm; square stage painted black; no substage condensor; drawtube held in ring attached to arm; height adjusted by manually sliding it inside of support; not adjustable for length; continental button objective; bolt on top of arm is signed "Boucart Paris," no other marks. Dev...

   Record Type: Object

   
3. Compound monocular microscope - 1885-1889

   Compound monocular microscope. "Student Grade". Modified horseshoe base; pillar supporting curved limb; round stage with clips, screwed to limb extension; coarse focus by sliding tube; fine focus on limb, roller-motion micrometer; patent for fine adjustment marked on arm "Jan. 21, 79"; signed on stage: " Bausch & Lomb Optical Co." .

   Record Type: Object

   
4. Compound monocular microscope - 1889-1899

   Compound monocular microscope. Student grade. Blackened brass "English" base; tubular limb; swinging tailpiece holds single plano concaved mirror on pivot arm and gimbal; square stage fixed to limb; fine focus applied to triangular bar through center of limb and milled nut on top; angular arm fastens outer split casing for body tube to limb; body tube capable of draw; double nosepiece with two objectives; signed: "Henry Crouch, London, 5523".

   Record Type: Object

   
5. Student grade compound monocular microscope - 1885-1889

   Compound monocular microscope; "Student Grade"; Modified horseshoe base; rectangular pillar; base is of two parts held together with central screw; reducing tension allows arm to pivot in pair of jaws that slot into curved channel on limb; diaphragms on revolving disk below stage; substage mirror mounted on swinging arm; circular stage screwed to limb extension; curved limb; course focus by sliding tube; fine focus on limb, roller-motion micromet...

   Record Type: Object